1303404003660 has 192 divisors, whose sum is σ = 4019500961280. Its totient is φ = 312959877120.

The previous prime is 1303404003611. The next prime is 1303404003683. The reversal of 1303404003660 is 663004043031.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 29147679 + ... + 29192361.

It is an arithmetic number, because the mean of its divisors is an integer number (20934900840).

Almost surely, 2^{1303404003660} is an apocalyptic number.

1303404003660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1303404003660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2009750480640).

1303404003660 is an abundant number, since it is smaller than the sum of its proper divisors (2716096957620).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1303404003660 is a wasteful number, since it uses less digits than its factorization.

1303404003660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45128 (or 45126 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 30.

Adding to 1303404003660 its reverse (663004043031), we get a palindrome (1966408046691).

The spelling of 1303404003660 in words is "one trillion, three hundred three billion, four hundred four million, three thousand, six hundred sixty".